The ELF loader is basically functional (needs more testing)

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5265 42af7a65-404d-4744-a932-0658087f49c3

binfmt/libelf/libelf_bind.c

@@ -142,7 +142,10 @@ static int elf_relocate(FAR struct elf_loadinfo_s *loadinfo, int relidx,
   int             ret;
   int             i;
 
-  /* Examine each relocation in the section */
+  /* Examine each relocation in the section.  'relsec' is the section
+   * containing the relations.  'dstsec' is the section containing the data
+   * to be relocated.
+   */
 
   for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rel); i++)
     {

binfmt/libelf/libelf_init.c

@@ -154,6 +154,7 @@ int elf_init(FAR const char *filename, FAR struct elf_loadinfo_s *loadinfo)
   /* Get the length of the file. */
 
   ret = elf_filelen(loadinfo, filename);
+  if (ret < 0)
     {
       bdbg("elf_filelen failed: %d\n", ret);
       return ret;